Bnr k04-gt28
#402
Senior Member
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im opposate. id rather have more hp than torque, and just raise the redline a bit. i personally think a car with 400whp and 350 tq shifting at 8k will pull a car with 400whp and 450 tq shifting at 6.5k with the same gearing. plus its easier on the clutch and drivetrain.
#403
Senior Member
Impulse Engines : Performance : More Average Torque
Do the math that my link shows you with your current dyno numbers and tell me what you get.
And I would guess that in your example the 400whp 450wtrq would win as that Trq would help accelerate you faster from a dig. Sorry don't do rolls.
Do the math that my link shows you with your current dyno numbers and tell me what you get.
And I would guess that in your example the 400whp 450wtrq would win as that Trq would help accelerate you faster from a dig. Sorry don't do rolls.
#407
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Those graphs look exactly like the regular gt28 graphs that can be found floating around. Idk if that is the exact graph for this combo. I was expecting a little loss in efficiency. If this thing can flow 45lbs/min ill be happy
#413
Senior Member
I'd love to be wrong here but, I just dont think its going to work as well as everyone thinks... Full-Race has a T3-T67 hybrid that is okay but my buddy swapped to a GT4088 which has a few mm smaller compressor and picked up like 50hp on pump gas lol
#414
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Thread Starter
Here are the compressor specs:
#420
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#421
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correct me if im wrong but is this not just a wheel/cover swap on the compressor side? I was saying stock K04 turbine w/ a 2871 compressor just doesnt seem like it would work all that well... bigger heavier wheel trying to grab more air and keeping the same force on the turbine when the 2871 clearly has a bigger area for the exhaust to apply its force... now if hes stuffing a 2871 into a stock turbine HOUSING then this could be veeerrryyy interesting
Last edited by RoadconeTuning; 12-15-2010 at 01:02 PM.
#422
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Its a full gt28 conversion. Both wheels are replaced and the housing on both sides are machined accordingly to fit. This is why I guess he feels comfortable using the stock garrett gt28 flow maps, because it will flow very similarly. Its not JUST a big wheel upgrade. Again, machined K04 housing with full gt2860 and gt2871 internals.
#423
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Its a full gt28 conversion. Both wheels are replaced and the housing on both sides are machined accordingly to fit. This is why I guess he feels comfortable using the stock garrett gt28 flow maps, because it will flow very similarly. Its not JUST a big wheel upgrade. Again, machined K04 housing with full gt2860 and gt2871 internals.
#425
Senior Member
iTrader: (1)
Correct. The 2871 has the upgraded housing. I was trying to minimilize what I was trying to say, sorry. I would love the 2871 but the upgraded housing eliminates the BPV and thus would require a BOV somewhere in the system and, me personally, I dont wanna mess with all that..lol...I think the 2860 should get us to at least 350 conservatively and 370 pushing it. Im happy with that, plus maybe the ZZP cams if they ever get released
Last edited by cubaniche; 12-15-2010 at 01:49 PM.